the administration has now been considering? >> reporter: yes, they are. in fact, that is something on the table. there are concerns primarily coming from the pentagon, we are told, however, thomas. you know, it's interesting. robert gates, the secretary of defense, of course, has served under both republican and democratic administrations. he gave a speech at west point on friday. when he said something very interesting. he said the next president, who sends ground troops into the middle east, into asia or into north africa ought to "have his head examined." he was paraphrasing general george macarthur -- douglas macarthur, rather. but something that turned out to be rather controversial. now, the pentagon is known to be concerned about not having the proper assets in the region, in the mediterranean, in order to conduct a no-fly zone, impose a no-fly zone, much like what was done in bosnia and iraq. they're also concerned that logistically you can't cover a country as large as libya and anything that happened would have to necessarily be confined to the skies over tripoli.